| Mineral: |
Kaolinite |
| Reference: |
R82a |
| SCM Type: |
TL - Triple Layer
(C1: 2.4 F/m2, C2: 0.2 F/m2) |
| Ionic Strength: |
0.0 mol/L of
Na2SO4
|
| Site Type: |
»Si-OH |
| PZC: |
4.6 |
| pK1: |
1.75 |
pK1°I=0 (Conversion to I = 0): |
1.75 |
pK12.31 nm−2 (normalized): |
1.86 |
| pK2: |
6.25 |
pK2°I=0 (Conversion to I = 0): |
6.25 |
pK22.31 nm−2 (normalized): |
6.14 |
| Site Density in nm-2: |
3.0000 |
| Original Site Density: |
3.0 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
0.0 |
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Tritium Exchange |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | graphic extrapolation |
| Comment: |
PZC=4.6+-0.3, double extrapolation technique to IS=0; >>SiOH:assumption strong acid sites, >>AlOH: weak acid sites (also successful modeling with pK2=9.1);
NsSiOH = NsAlOH and NsXOH = NsSiOH + NsAlOH |
| |
| Mineral: |
Kaolinite |
| Reference: |
R82a |
| SCM Type: |
TL - Triple Layer
(C1: 2.4 F/m2, C2: 0.2 F/m2) |
| Ionic Strength: |
0.0 mol/L of
Na2SO4
|
| Site Type: |
»Al-OH |
| PZC: |
4.6 |
| pK1: |
|
pK1°I=0 (Conversion to I = 0): |
|
|
| pK2: |
7.4 |
pK2°I=0 (Conversion to I = 0): |
7.40 |
pK22.31 nm−2 (normalized): |
7.29 |
| Site Density in nm-2: |
3.0000 |
| Original Site Density: |
3.0 sites / nm² surface
|
| Solid/Liquid Ratio in g/L: |
0.0 |
| pH Range: |
|
| Temperature in K: |
|
| Method for Site Density: |
Tritium Exchange |
| Method for Protolysis: | Potentiometric Titration |
| Fit Method: | graphic extrapolation |
| Comment: |
PZC=4.6+-0.3, double extrapolation technique to IS=0; >>SiOH:assumption strong acid sites, >>AlOH: weak acid sites (also successful modeling with pK2=9.1);
NsSiOH = NsAlOH and NsXOH = NsSiOH + NsAlOH |
| |
